Excel CSV Character Fixer
Fix Korean character corruption in Excel CSV files by adding UTF-8 BOM
Injects a Byte Order Mark (BOM) to UTF-8 CSV files to prevent Excel from displaying corrupt characters.
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How to use
- Upload or paste your CSV document.
- Click the Fix button to embed the BOM.
- Download the corrected CSV file.
FAQ
- What is a BOM?
- Byte Order Mark (BOM) is a signature at the beginning of a file telling Excel to interpret the file as UTF-8.
- Do I need the BOM if I'm opening the file in Google Sheets or another app?
- No — Google Sheets and most modern text editors auto-detect UTF-8, so Korean text displays fine without a BOM. The BOM is really only needed when the file is opened in Microsoft Excel.
- Do I need the BOM if I'm opening the file in Google Sheets or another app?
- No — Google Sheets and most modern text editors auto-detect UTF-8, so Korean text displays fine without a BOM. The BOM is really only needed when the file is opened in Microsoft Excel.